Which type of contract involves parties expressing their intentions verbally or in writing?

An express contract is characterized by the clear and definite intentions of the parties involved, which can be articulated either verbally or in writing. This type of contract requires that the terms and conditions are explicitly stated so that all parties understand their commitments and obligations. When parties enter into an express contract, there is a mutual agreement on the specifics of the performance required, ensuring clarity and mutual consent.

Implied contracts, by contrast, arise from the actions or circumstances of the parties rather than from explicit agreements. Unilateral contracts involve a promise made by one party that is contingent upon the performance of an action by another. Bilateral contracts involve mutual promises between two parties, where each agrees to fulfill their part of the deal, but do not necessarily relate to whether those promises are expressed verbally or in writing.

Thus, the correct answer highlights the importance of explicit communication in forming a binding agreement, distinguishing it from other types of contracts that might lack such clear articulation.